[Bug target/81616] Update -mtune=generic for the current Intel and AMD processors

[andrewm.roberts at sky dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81616

--- Comment #9 from Andrew Roberts <andrewm.roberts at sky dot com> ---
Created attachment 42690
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42690&action=edit
Test results for Skylake system with matrix.c

Test results for Skylake system with matrix.c